题目

—Ken, ____, but your TV is going too loud．        —Oh, I'm sorry．I'11 turn it down right now．        A．I' d like to talk with you                       B．I'm really tired of this        C．I hate to say this                                 D．I need your help 答案：C3．一位粗心的同学测量一些物体的长度时忘记了写单位，请你给他记录的数据填写适当的单位：（1）教室门的高度22.5dm；（2）黑板的长度为312cm；（3）一张卡片的厚度是0.25mm．